The Microscopic Study of the Evolution of the Phase Transformation in the Tin after the Indentation of an Inoculator

0583189 - ÚFM 2025 RIV CZ eng J - Journal Article
Michalcová, A. - Msallamová, Š. - Fink, D. - Kubásek, J. - Friák, Martin
The Microscopic Study of the Evolution of the Phase Transformation in the Tin after the Indentation of an Inoculator.
Manufacturing Technology. Roč. 24, č. 1 (2024), s. 83-86. ISSN 1213-2489
R&D Projects: GA ČR(CZ) GA22-05801S
Institutional support: RVO:68081723
Keywords : Tin Pest * Microscopy * Pictures * Inoculator
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 0.9, year: 2022
Method of publishing: Open access
https://journalmt.com/artkey/mft-202401-0006_the-microscopic-study-of-the-evolution-of-the-phase-transformation-in-the-tin-after-the-indentation-of-an-inocu.php

This paper describes β-Sn to α-Sn transformation in its initial phase. This process is also known as a tin pest and currently it causes problems mainly in the field of soldering materials. To avoid misrepresentation of the results of artificial ageing of the samples, we have decided to use historical materials for our
study. A sample from historical organ pipes was indented by naturally formed α-Sn polycrystalline particles by the load of 1 kg. The sample in the initial state was observed by SEM and analysed by EBSD mapping. The position of inoculator particles was documented again by SEM observation. Subseqently, the sample was freezed at -50 °C. The evolution of cracks started after 2.5h in the vicinity of indented α Sn particle. After 5 h of freezing, new cracks were observed also in the untouched parts of the sample. The crystallografical interconnectedness was not proven for polycrystalline samples.
Permanent Link: https://hdl.handle.net/11104/0352705